Valideringskod
*     *  *     *  ******   *******  *     *  
*     *  **    *  *     *  *         *   *   
*     *  * *   *  *     *  ******     * *    
*  *  *  *  *  *  ******         *     *     
* * * *  *   * *  *   *          *     *     
**   **  *    **  *    *   *     *     *     
*     *  *     *  *     *   *****      *